CanonicalizeUrl

The CanonicalizeUrl method is a utility function that canonicalizes a URL into a standard form to avoid duplicates. For example, "http://www.chilkatsoft.com/" and "http://www.chilkatsoft.com/default.asp" are the same URL.

Download Chilkat C/C++ Libraries for VC++ 9.0 / Win32

Download Chilkat C/C++ Libraries for VC++ 8.0 / Win32

Download Chilkat C/C++ 64-bit Libraries for VC++ 8.0 / x64

Download Chilkat Visual Studio 2005 C/C++ Libs for Windows Mobile, Pocket PC, SmartPhone, WinCE

Download Chilkat C/C++ Libraries for VC++ 7.0 / Win32

Download Chilkat C/C++ Libraries for VC++ 6.0 / Win32

Download Chilkat C/C++ Libraries for VC++ 6.0, Win 95/98/NT4 Compatible

// Needs #include <CkSpider.h>

    CkString strOut;

    //  The Chilkat Spider component/library is free.
    CkSpider spider;

    //  Does a DNS lookup to find the default domain, which may or may not include the "www." depending on the DNS results.
    //  Also domain names are converted to lowercase:
    strOut.append(spider.canonicalizeUrl("http://www.ChilkatSoft.com/"));
    strOut.append("\r\n");

    //  CanonicalizeUrl will drop the HTML fragment:
    strOut.append(spider.canonicalizeUrl("http://www.chilkatsoft.com/purchase2.asp#buyZip"));
    strOut.append("\r\n");

    //  If a username/password is in the URL, it gets dropped:
    strOut.append(spider.canonicalizeUrl("http://username:password@www.chilkatsoft.com/purchase2.asp#buyZip"));
    strOut.append("\r\n");

    //  Port 80 and 443 are dropped:
    strOut.append(spider.canonicalizeUrl("http://www.chilkatsoft.com:80/purchase2.asp"));
    strOut.append("\r\n");
    strOut.append(spider.canonicalizeUrl("https://www.paypal.com:443/"));
    strOut.append("\r\n");

    //  Removes default pages:
    //  default.asp, index.html, index.htm, default.html, index.htm, default.htm
    //  index.php, index.asp, default.php, .cfm, .aspx, ,php3, .pl, .cgi, .txt, .shtml, .phtml
    strOut.append(spider.canonicalizeUrl("http://www.chilkatsoft.com/index.asp"));
    strOut.append("\r\n");
    strOut.append(spider.canonicalizeUrl("http://www.chilkatsoft.com/index.asp"));
    strOut.append("\r\n");
    strOut.append(spider.canonicalizeUrl("http://www.chilkatsoft.com/index.php"));
    strOut.append("\r\n");
    strOut.append(spider.canonicalizeUrl("http://www.chilkatsoft.com/index.pl"));
    strOut.append("\r\n");
    strOut.append(spider.canonicalizeUrl("http://www.chilkatsoft.com/index.htm"));
    strOut.append("\r\n");

    //  Output:
    //  http://chilkatsoft.com/
    //  http://chilkatsoft.com/purchase2.asp
    //  http://chilkatsoft.com/purchase2.asp
    //  http://chilkatsoft.com/purchase2.asp
    //  https://www.paypal.com/
    //  http://chilkatsoft.com/
    //  http://chilkatsoft.com/
    //  http://chilkatsoft.com/
    //  http://chilkatsoft.com/
    //  http://chilkatsoft.com/


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());